EP0078376A2 - Drum for a drum scanner - Google Patents

Drum for a drum scanner Download PDF

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Publication number
EP0078376A2
EP0078376A2 EP82107886A EP82107886A EP0078376A2 EP 0078376 A2 EP0078376 A2 EP 0078376A2 EP 82107886 A EP82107886 A EP 82107886A EP 82107886 A EP82107886 A EP 82107886A EP 0078376 A2 EP0078376 A2 EP 0078376A2
Authority
EP
European Patent Office
Prior art keywords
roller
pot
structures
drum
rings
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP82107886A
Other languages
German (de)
French (fr)
Other versions
EP0078376A3 (en
Inventor
Ralf Balzeit
Wolfgang Dinse
Reinhard Gesell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dr Ing Rudolf Hell GmbH
Original Assignee
Dr Ing Rudolf Hell GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dr Ing Rudolf Hell GmbH filed Critical Dr Ing Rudolf Hell GmbH
Publication of EP0078376A2 publication Critical patent/EP0078376A2/en
Publication of EP0078376A3 publication Critical patent/EP0078376A3/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/06—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using cylindrical picture-bearing surfaces, i.e. scanning a main-scanning line substantially perpendicular to the axis and lying in a curved cylindrical surface
    • H04N1/0692—Details of the cylindrical surface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/06—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using cylindrical picture-bearing surfaces, i.e. scanning a main-scanning line substantially perpendicular to the axis and lying in a curved cylindrical surface

Definitions

  • the present invention relates to a drum for drum scanners, consisting of a hollow cylindrical body which is rotatably supported at its ends.
  • drum scanners In contrast to flatbed scanners, drum scanners have rollers which rotate rapidly on the scanning side and on the recording side, on which the original to be scanned is fastened on the scanning side and the recording media are fastened on the recording side. In order to obtain a high working speed with such scanners, it is necessary to let the roller rotate quickly, which on the one hand leads to high centrifugal forces and due to the large format Vor desired today were a stable construction - the rollers required. In order to be able to hold the recording medium on the roller even at high speeds, the surface of the roller has suction openings which are connected to a vacuum prevailing inside the roller. This ensures that clamping devices can also be omitted, which could lead to an undesirable unbalance at high speeds.
  • the present invention is therefore based on the object of creating a new type of roller which meets the various demands placed on it and avoids the disadvantage of the known roller.
  • the invention achieves this in that the cylindrical roller body consists of a number of pot-like structures which are pushed into one another and glued to one another.
  • Another embodiment of the invention consists in that the cylindrical roller body consists of a number of pot-like structures and rings which are also pushed into each other and. glued together.
  • Another Aus leadership form can consist in that the cylindrical roller body consists of a number of rings which are connected and glued at their joints by means of tab rings. A round sheet metal plate also maintains the round shape. Rollers using a combination of the above design features also fall within the scope of the present invention. Advantageous developments of the invention are described in the subclaims.
  • Figure 1 shows a roller 1, which according to the invention is composed of several parts. Lids 2 and 3 are provided on the end faces, each of which has a recess 21 or 31 in the central area, into which a rod 4 passing through the roller 1 engages and at the end ends is clamped by nuts 41 and 42.
  • the actual cylindrical roller body consists of pot-like structures 5 to 10 which are pushed into one another, a ring 18 being provided at one end of the roller in order to obtain a closure with the cover 1.
  • the pot-like structures 5 to 10 are drawn in at their bottom ends so that the next element can be placed over them.
  • the joints between the individual elements are filled with adhesive during assembly, and the rod 4 and the nuts 41 and 42 pull the roller body together, so that, provided that the individual elements are clean at their ends, an exactly cylindrical one Body results.
  • suction holes 181 are provided in the roller surface, which have been shown in FIG. 1 only for the element 18.
  • the entire surface of the roller is provided with several rows of such suction holes, which are connected to a vacuum prevailing inside the roller.
  • FIG. 2 shows a similar construction of a roller 1, which at its ends also has lids 2 and 3 which are comparable with FIG. 1 and which also have recesses 21 and 31 into which a rod 4 engages, which in turn by means of the screws 41 and 42 individual elements clamped.
  • ring-like elements 15, 16, 17 and 18 are provided here, which are connected and glued to one another from the inside with tab rings 20, 21 'and 22 at their joints.
  • disk-like bodies 23, 24, 25 and 26 are also provided, which support the outer jacket of the cylinder and dictate the round shape. Also in this embodiment, if you ensure that the end faces of the individual elements are processed properly, it is ensured that an exactly cylindrical body results.
  • FIG. 1 shows a similar construction of a roller 1, which at its ends also has lids 2 and 3 which are comparable with FIG. 1 and which also have recesses 21 and 31 into which a rod 4 engages, which in turn by means of the screws 41 and 42 individual elements clamped.
  • ring-like elements 15, 16, 17 and 18 are provided here
  • roller bodies proposed in the present invention are particularly suitable for drum scanners in the graphic arts industry or other reproduction devices which work with rollers for the recording of originals or recording media.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Preparing Plates And Mask In Photomechanical Process (AREA)

Abstract

This drum consists of a hollow cylindrical body which is supported at its ends and is provided with suction openings for receiving a recording carrier or an original. The cylindrical drum body is composed of a plurality of individual elements which are held together by means of a rod which can be screwed to the cover ends of the drum body, and are also bonded to one another. <IMAGE>

Description

Technisches GebietTechnical field

Die vorliegende Erfindung betrifft eine Walze für Trommelscanner, bestehend aus einem hohlen zylindrischen Körper, der an seinen Stirnenden drehbar gelagert ist.The present invention relates to a drum for drum scanners, consisting of a hollow cylindrical body which is rotatably supported at its ends.

Zugrundeliegender Stand der TechnikUnderlying state of the art

Trommelscanner weisen entgegen Flachbettscannern auf der Abtastseite und auf der Aufzeichnungsseite schnell rotierende Walzen auf, auf denen auf der Abtastseite das abzutastende Original und auf der Aufzeichnungsseite der Aufzeichnungsträger befestigt sind. Um eine hohe Arbeitsgeschwindigkeit bei solchen Scannern zu erhalten, ist es erforderlich, die Walze schnell rotieren zu lassen, was einerseits zu hohen Fliehkräften führt und aufgrund der heute erwünschten großformatigen Vorlagen eine stabile Bauweise-der Walzen erforderlich macht. Um den Aufzeichnungsträger auch bei hohen Drehzahlen auf der Walze halten zu können, weist die Walze in ihrer Oberfläche Saugöffnungen auf, die mit einem im Inneren der Walze herrschenden Vakuum verbunden sind. So wird erreicht, daß auch Spannvorrichtungen wegfallen können, die bei hohen Drehzahlen zu einer unerwünschten Unwucht führen könnten. Wegen der bei der Bildverarbeitung erforderlichen hohen Präzision kommt es bei der Geometrie der Oberfläche der Walze ebenfalls auf eine hohe mechanische Präzision an. Bei der bisherigen Art der Walzenherstellung, sei es durch Abdrehen fertiger Rohre oder durch Ausdrehen der Walzen aus vollem Material kommt es zu relativ hohen Kosten und einer schweren Bauweise der Walzen.In contrast to flatbed scanners, drum scanners have rollers which rotate rapidly on the scanning side and on the recording side, on which the original to be scanned is fastened on the scanning side and the recording media are fastened on the recording side. In order to obtain a high working speed with such scanners, it is necessary to let the roller rotate quickly, which on the one hand leads to high centrifugal forces and due to the large format Vor desired today were a stable construction - the rollers required. In order to be able to hold the recording medium on the roller even at high speeds, the surface of the roller has suction openings which are connected to a vacuum prevailing inside the roller. This ensures that clamping devices can also be omitted, which could lead to an undesirable unbalance at high speeds. Because of the high precision required in image processing, the geometry of the surface of the roller also requires high mechanical precision. With the previous type of roll production, be it by turning off finished pipes or by unscrewing the rolls from full material, there are relatively high costs and a heavy construction of the rolls.

Offenbarung der ErfindungDisclosure of the invention

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, eine neuartige Walze zu schaffen, die den vielseitigen an sie gestellten Forderungen gerecht wird und den Nachteil der bekannten Walze vermeidet. Die Erfindung erreicht dies dadurch, daß der zylindrische Walzenkörper aus einer Anzahl von topfartigen"Gebilden besteht, die ineinander geschoben und miteinander verklebt sind. Eine weitere Ausführungsform der Erfindung besteht darin, daß der zylindrische Walzenkörper aus einer Anzahl von topfartigen Gebilden und Ringen besteht, die ebenfalls ineinander geschoben und .miteinander verklebt sind. Eine weitere Ausführungsform kann darin bestehen, daß der zylindrische Walzenkörper aus einer Anzahl von Ringen besteht, die an ihren Stoßstellen mittels Laschenringen verbunden und verklebt sind. Eine runde Blechplatte sorgt außerdem für den Erhalt der runden Form. Walzen, bei denen eine Kombination der vorgenannten Konstruktionsmerkmale verwendet wird, fallen ebenfalls in den Rahmen der vorliegenden Erfindung. Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen beschrieben.The present invention is therefore based on the object of creating a new type of roller which meets the various demands placed on it and avoids the disadvantage of the known roller. The invention achieves this in that the cylindrical roller body consists of a number of pot-like structures which are pushed into one another and glued to one another. Another embodiment of the invention consists in that the cylindrical roller body consists of a number of pot-like structures and rings which are also pushed into each other and. glued together. Another Aus leadership form can consist in that the cylindrical roller body consists of a number of rings which are connected and glued at their joints by means of tab rings. A round sheet metal plate also maintains the round shape. Rollers using a combination of the above design features also fall within the scope of the present invention. Advantageous developments of the invention are described in the subclaims.

Kurze Beschreibung der ErfindungBrief description of the invention

Die Erfindung wird im folgenden anhand der Figuren 1 und 2 näher erläutert.The invention is explained in more detail below with reference to FIGS. 1 and 2.

Es zeigen:

  • Figur 1 eine Ausführungsform der Erfindung mit topfartigen ineinander geschobenen Gebilden und
  • Figur 2 eine Ausführungsform der Erfindung mit Ringen, die mittels Laschenringen miteinander verbunden sind.
Show it:
  • 1 shows an embodiment of the invention with pot-like structures pushed into one another and
  • Figure 2 shows an embodiment of the invention with rings which are connected to one another by means of tab rings.

Bester Weg zur Ausführungsform der ErfindungBest way to implement the invention

Figur 1 zeigt eine Walze 1, die erfindungsgemäß aus mehreren Teilen zusammengesetzt ist. An den Stirnseiten sind Deckel 2 und 3 vorgesehen, die im zentralen Bereich je eine Ausnehmung 21 bzw. 31 haben, in die eine durch die Walze 1 hindurchgehende Stange 4 greift und an den Stirnenden mittels Muttern 41 und 42 verspannt ist.Figure 1 shows a roller 1, which according to the invention is composed of several parts. Lids 2 and 3 are provided on the end faces, each of which has a recess 21 or 31 in the central area, into which a rod 4 passing through the roller 1 engages and at the end ends is clamped by nuts 41 and 42.

Der eigentliche zylindrische Walzenkörper besteht aus topfartigen Gebilden 5 bis 10, die ineinandergeschoben sind, wobei an dem einen Ende der Walze ein Ring 18 vorgesehen ist, um mit dem Deckel 1 einen Abschluß zu erhalten. Wie aus der Zeichnung zu ersehen ist, sind die topfartigen Gebilde 5 bis 10 an ihren Bodenenden eingezogen, damit das nächste Element darüber gestülpt werden kann. Die Verbindungsstellen zwischen den einzelnen Elementen sind beim Zusammenbau mit Klebstoff gefüllt, und durch die Stange 4 und die Muttern 41 und 42 wird der Walzenkörper zusammengezogen, so daß sich unter der Voraussetzung, daß die einzelnen Elemente an ihren Enden sauber gefertigt sind, ein exakt zylindrischer Körper ergibt. Um das aufzuspannende Material, sei es das Original oder der Aufzeichnungsträger, auf der rotierenden Walzenoberfläche zu halten, sind in der Walzenoberfläche Sauglöcher 181 vorgesehen, die in Figur 1 nur für das Element 18 eingezeichnet worden sind. Selbstverständlich ist die Walzenoberfläche in ihrer gesamten Oberfläche mit mehreren Reihen solcher Sauglöcher versehen, die mit einem im Inneren der Walze herrschenden Vakuum in Verbindung stehen.The actual cylindrical roller body consists of pot-like structures 5 to 10 which are pushed into one another, a ring 18 being provided at one end of the roller in order to obtain a closure with the cover 1. As can be seen from the drawing, the pot-like structures 5 to 10 are drawn in at their bottom ends so that the next element can be placed over them. The joints between the individual elements are filled with adhesive during assembly, and the rod 4 and the nuts 41 and 42 pull the roller body together, so that, provided that the individual elements are clean at their ends, an exactly cylindrical one Body results. In order to hold the material to be clamped, be it the original or the recording medium, on the rotating roller surface, suction holes 181 are provided in the roller surface, which have been shown in FIG. 1 only for the element 18. Of course, the entire surface of the roller is provided with several rows of such suction holes, which are connected to a vacuum prevailing inside the roller.

Figur 2 zeigt eine ähnliche Konstruktion einer Walze 1, die an ihren Enden ebenfalls mit der Figur 1 vergleichbare Deckel 2 und 3 aufweist, die ebenfalls Ausnehmungen 21 und 31 aufweisen, in die eine Stange 4 greift, die mittels der Schrauben 41 und 42 wiederum die einzelnen Elemente verspannt. Anstelle der topfartigen Gebilde der Figur 1 sind hier ringartige Elemente 15, 16, 17 und 18 vorgesehen, die mit Laschenringen 20, 21' und 22 an ihren Stoßstellen von innen miteinander verbunden und verklebt sind. Zur Erhöhung der Steifigkeit sind noch scheibenartige Körper 23, 24, 25 und 26 vorgesehen, welche den Außenmantel des Zylinders abstützen und die runde Form diktieren. Auch bei dieser Ausführungsform ist im Falle, daß man dafür sorgt, daß die Stirnstellen der einzelnen Elemente sauber verarbeitet sind, gewährleistet, daß sich ein exakt zylindrischer Körper ergibt. Wie in Figur 1 sind die Elemente mit Hilfe der Deckel 2 und 3, der Stange 4 und der Schrauben 41 und 42 miteinander verspannt. Um zu vermeiden, daß bei Verwendung kleiner Teilformate große Teile der unbedeckten Saugöffnungen geschlossen werden müssen, sind ein oder mehrere Topfböden ohne Öffnungen gefertigt. Über Ventile können die einzelnen Räume an die Vakuumleitung angeschlossen werden. Bei großen Walzen werden diese druckdichten Böden mit einer der Beanspruchung entsprechenden Form versehen (Kesselboden).FIG. 2 shows a similar construction of a roller 1, which at its ends also has lids 2 and 3 which are comparable with FIG. 1 and which also have recesses 21 and 31 into which a rod 4 engages, which in turn by means of the screws 41 and 42 individual elements clamped. Instead of the pot - like structures of the FIG. 1, ring-like elements 15, 16, 17 and 18 are provided here, which are connected and glued to one another from the inside with tab rings 20, 21 'and 22 at their joints. To increase the rigidity, disk-like bodies 23, 24, 25 and 26 are also provided, which support the outer jacket of the cylinder and dictate the round shape. Also in this embodiment, if you ensure that the end faces of the individual elements are processed properly, it is ensured that an exactly cylindrical body results. As in FIG. 1, the elements are clamped together using covers 2 and 3, rod 4 and screws 41 and 42. In order to avoid that large parts of the uncovered suction openings have to be closed when using small partial formats, one or more pot bases are made without openings. The individual rooms can be connected to the vacuum line via valves. In the case of large rollers, these pressure-tight floors are given a shape that corresponds to the stress (boiler bottom).

Gewerbliche VerwertbartkeitCommercial usability

Die bei der vorliegenden Erfindung vorgeschlagenen Walzenkörper sind besonders geeignet für Trommelscanner in dem grafischen Gewerbe oder sonstige Reproduktionsgeräte, die mit Walzen für die Aufnahme von Original oder Aufzeichnungsträger arbeiten.The roller bodies proposed in the present invention are particularly suitable for drum scanners in the graphic arts industry or other reproduction devices which work with rollers for the recording of originals or recording media.

Claims (8)

I. Walze für Trommelscanner, bestehend aus einem hohlen zylindrischen Körper, der an seinen Enden drehbar gelagert ist, dadurch gekennzeichnet, daß der zylindrische Walzenkörper aus einer Anzahl von topfartigen Gebilden besteht, die ineinandergeschoben und miteinander verklebt sind.I. roller for drum scanner, consisting of a hollow cylindrical body which is rotatably supported at its ends, characterized in that the cylindrical roller body consists of a number of pot-like structures which are pushed into one another and glued together. 2. Walze für Trommelscanner, bestehend aus einem hohlen zylindrischen Körper, der an seinen Enden drehbar gelagert ist, dadurch gekennzeichnet, daß der zylindrische Walzenkörper aus einer Anzahl von topfartigen Gebilden und Ringen besteht, die ineinandergeschoben und miteinander verklebt sind.2. roller for drum scanner, consisting of a hollow cylindrical body which is rotatably supported at its ends, characterized in that the cylindrical roller body consists of a number of pot-like structures and rings which are pushed into one another and glued together. 3. Walze für Trommelscanner, bestehend aus einem hohlen zylindrischen Körper, der an seinen Enden gelagert ist, dadurch gekennzeichnet, daß der zylindrische Körper aus einer Anzahl von Ringen besteht, die an ihren Stoßstellen mittels Laschenringen verbunden und verklebt sind und mit einer runden Blechscheibe versehen sind.3. roller for drum scanner, consisting of a hollow cylindrical body which is supported at its ends, characterized in that the cylindrical body consists of a number of rings which are connected and glued at their joints by means of tab rings and provided with a round sheet metal disc are. 4. Walze nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß die topfartigen Gebilde im Bodenbereich zum Ineinanderverschieben des nächsten topfartigen Gebildes eingezogen sind.4. Roller according to one of claims 1 and 2, characterized in that the pot-like structures are retracted in the bottom area for sliding the next pot-like structure. 5. Walze nach einem der.Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der walzenförmige Körper an seinen Enden deckelartige Gebilde aufweist, die mittels einer durch das Innere des walzenförmigen Körpers gehenden Stange miteinander verschraubbar sind.5. Roller according to one of claims 1 to 4, characterized in that the roller-shaped body has at its ends lid-like structures which can be screwed together by means of a rod which passes through the interior of the roller-shaped body. 6. Walze nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Oberfläche der Walze mit Saugöffnungen versehen ist, die mit einem im Inneren der Walze herrschenden Vakuum verbunden sind.6. Roller according to one of claims 1 to 5, characterized in that the surface of the roller is provided with suction openings which are connected to a vacuum prevailing inside the roller. 7. Walze nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß einer oder mehrere der Topfböden ohne Löcher ausgeführt und druckdicht verklebt ist.7. Roller according to one of claims 1 to 6, characterized in that one or more of the pot bases is designed without holes and glued pressure-tight. 8. Walze nach Anspruch 3, dadurch gekennzeichnet, daß zusätzlich zu einem Boden oder einer runden Scheibe ein Schott druckdicht eingesetzt ist, das eine der Druckrichtung und -beanspruchung entsprechende Form aufweist.8. Roller according to claim 3, characterized in that in addition to a bottom or a round disc, a bulkhead is used pressure-tight, which has a shape corresponding to the pressure direction and stress.
EP82107886A 1981-10-31 1982-08-27 Drum for a drum scanner Withdrawn EP0078376A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3143342 1981-10-31
DE3143342A DE3143342C2 (en) 1981-10-31 1981-10-31 Drum for drum scanner

Publications (2)

Publication Number Publication Date
EP0078376A2 true EP0078376A2 (en) 1983-05-11
EP0078376A3 EP0078376A3 (en) 1986-02-19

Family

ID=6145355

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82107886A Withdrawn EP0078376A3 (en) 1981-10-31 1982-08-27 Drum for a drum scanner

Country Status (8)

Country Link
EP (1) EP0078376A3 (en)
JP (1) JPS5886546A (en)
AU (1) AU8931382A (en)
CA (1) CA1193308A (en)
DE (1) DE3143342C2 (en)
DK (1) DK477382A (en)
IL (1) IL67095A (en)
SU (1) SU1215610A3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0184315A1 (en) * 1984-10-30 1986-06-11 Crosfield Electronics Limited Cylinders for output scanners and methods of making them
EP0193962A2 (en) * 1985-03-07 1986-09-10 Dainippon Screen Mfg. Co., Ltd. A rotary suction drum

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59141344U (en) * 1983-03-09 1984-09-21 大日本スクリ−ン製造株式会社 A recording drum that can be used to attach and detach films of various sizes.
DE4023530A1 (en) * 1990-07-20 1992-01-23 Berthold Ag H Precision transporting and holding installation for printer - accurately moves original or photosensitive material in both directions by drum for scanning under effect of vacuum
JPH0669506U (en) * 1993-03-18 1994-09-30 ヤンマーディーゼル株式会社 Breather mechanism of deceleration reversing machine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE357401C (en) * 1922-08-22 Friedrich Schwerd Dipl Ing Drive drum
GB762453A (en) * 1952-04-23 1956-11-28 Gilbert Edward Fisher A new or improved construction of metal cylinder, drum, roller or the like
GB1255303A (en) * 1970-02-14 1971-12-01 Karl Stumpf K G Improvements in and relating to conical rollers for roller tracks
US3925607A (en) * 1974-08-21 1975-12-09 Singer Co Rotary data base converter with flexible data base
US4268841A (en) * 1979-06-28 1981-05-19 Canon Kabushiki Kaisha Image recording method and apparatus therefor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1276688B (en) * 1964-10-20 1968-09-05 Arnstadt Fernmeldewerk Arrangement for picture drums of facsimile devices
FR1454191A (en) * 1964-12-10 1966-07-22 Muirhead & Co Ltd Drum for remote image transmission

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE357401C (en) * 1922-08-22 Friedrich Schwerd Dipl Ing Drive drum
GB762453A (en) * 1952-04-23 1956-11-28 Gilbert Edward Fisher A new or improved construction of metal cylinder, drum, roller or the like
GB1255303A (en) * 1970-02-14 1971-12-01 Karl Stumpf K G Improvements in and relating to conical rollers for roller tracks
US3925607A (en) * 1974-08-21 1975-12-09 Singer Co Rotary data base converter with flexible data base
US4268841A (en) * 1979-06-28 1981-05-19 Canon Kabushiki Kaisha Image recording method and apparatus therefor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0184315A1 (en) * 1984-10-30 1986-06-11 Crosfield Electronics Limited Cylinders for output scanners and methods of making them
EP0193962A2 (en) * 1985-03-07 1986-09-10 Dainippon Screen Mfg. Co., Ltd. A rotary suction drum
EP0193962A3 (en) * 1985-03-07 1986-11-05 Dainippon Screen Mfg. Co., Ltd. A rotary suction drum
US4687323A (en) * 1985-03-07 1987-08-18 Dainippon Screen Mfg. Co., Ltd. Rotary suction drum

Also Published As

Publication number Publication date
SU1215610A3 (en) 1986-02-28
EP0078376A3 (en) 1986-02-19
AU8931382A (en) 1983-05-05
CA1193308A (en) 1985-09-10
IL67095A (en) 1986-02-28
DE3143342C2 (en) 1983-10-06
DE3143342A1 (en) 1983-05-26
IL67095A0 (en) 1983-02-23
JPS6246853B2 (en) 1987-10-05
JPS5886546A (en) 1983-05-24
DK477382A (en) 1983-05-01

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